function __construct($openid_namespace = null)
{
// Create an empty Message
$this->allowed_openid_namespaces = array(Auth_OpenID_OPENID1_NS, Auth_OpenID_THE_OTHER_OPENID1_NS, Auth_OpenID_OPENID2_NS);
$this->args = new Auth_OpenID_Mapping();
$this->namespaces = new Auth_OpenID_NamespaceMap();
if ($openid_namespace === null) {
$this->_openid_ns_uri = null;
} else {
$implicit = Auth_OpenID_isOpenID1($openid_namespace);
$this->setOpenIDNamespace($openid_namespace, $implicit);
}
}